Home / 1,087,255.80-1,630,106.10-487,726.20

Finding the Fourth Proportional to 1,087,255.80, 1,630,106.10 and 487,726.20

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Solution

The fourth proportional to 1,087,255.80, 1,630,106.10 and 487,726.20 is: 731,240.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,255.80 : 1,630,106.10 = 487,726.20 : x
  2. Step 2: Convert to fraction form
    1,087,255.80/1,630,106.10 = 487,726.20/x
  3. Step 3: Cross multiply
    1,087,255.80x = 1,630,106.10 × 487,726.20
  4. Step 4: Simplify right side
    1,087,255.80x = 795,045,453,749.82
  5. Step 5: Solve for x
    x = 795,045,453,749.82/1,087,255.80
  6. Step 6: Final answer
    x = 731,240.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.